the operator \(Q_n\)  is not bounded on \(\mathcal {B}_b(\Gamma )\) . If it were, suitable solutions and possible variational formulation would fall into the framework of [1]}, where triples \((V,\pi ,\kappa )\)  are considered, with \(V\)  a Polish space, \(\pi \)  a finite measure, and \(\kappa (x,\mathrm {d}y)\)  a jump kernel satisfying a detailed balance condition with respect to \(\pi \)  and the boundedness condition
\(\sup _{x} \int _{V} k(x,\mathrm {d}y) < \infty .\) 
